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              iSlider 移动端click事件失效
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                  <time title="创建时间：2020-08-28 14:19:36" itemprop="dateCreated datePublished" datetime="2020-08-28T14:19:36+08:00">2020-08-28</time>
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                <span id="/blob/2020-08-28-the-click-event-of-islider-mobile-terminal-is-invalid/" class="post-meta-item leancloud_visitors" data-flag-title="iSlider 移动端click事件失效" title="阅读次数">
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            <p><a target="_blank" rel="noopener" href="https://github.com/jwenjian/visitor-count-badge"><img src="" data-original="https://visitor-badge.glitch.me/badge?page_id=holidaypenguin.gitee.io/" alt="总访客数量"></a></p>
            <p><img src="" data-original="/images/FrontEnd/2530160-59814ea9914a189f.webp" alt="image.png"><br><code>iSlider</code>使用<code>delegat</code>或者<code>bind</code>可以绑定事件，遂绑定了<code>click</code>事件，在pc端是可以使用的，在移动端是不可以使用的，这是为了在移动端可以更好地滑动做的处理。</p>
            <p>那么移动端的点击事件该如何实现呢？</p>
            <p>采用类似<code>zepto.js</code> 的<code>tap</code>事件。</p>
            <h1 id="方法一"><a href="#方法一" class="headerlink" title="方法一"></a>方法一</h1>
            <p>首先<code>touchstart</code>事件清理定时任务并重新开始计时</p>
            <p>如果有<code>touchmove</code>事件则清理定时器</p>
            <p>当触发<code>touchend</code>事件时判断定时器是否被清理，没有被清理则执行对应方法，并且清理定时器</p>
            <p>结合iSlider就会有如下代码</p>
            <figure class="highlight js">
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                    <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br></pre>
                  </td>
                  <td class="code">
                    <pre><span class="line">&#123;</span><br><span class="line">    <span class="function"><span class="title">init</span>(<span class="params"></span>)</span> &#123;</span><br><span class="line">      <span class="comment">// 省略创建代码</span></span><br><span class="line">      <span class="comment">// 当手指触屏时触发</span></span><br><span class="line">      <span class="built_in">this</span>.slider.on(<span class="string">&#x27;slideStart&#x27;</span>, <span class="built_in">this</span>.slideStartHandler)</span><br><span class="line">      <span class="comment">// 当手指滑动时触发</span></span><br><span class="line">      <span class="built_in">this</span>.slider.on(<span class="string">&#x27;slide&#x27;</span>, <span class="built_in">this</span>.slideHandler)</span><br><span class="line">      <span class="comment">// 当手指离开时触发</span></span><br><span class="line">      <span class="built_in">this</span>.slider.on(<span class="string">&#x27;slideEnd&#x27;</span>, <span class="built_in">this</span>.slideEndHandler)</span><br><span class="line">    &#125;,</span><br><span class="line">    <span class="function"><span class="title">cancelTouchTime</span>(<span class="params"></span>)</span> &#123;</span><br><span class="line">      <span class="keyword">if</span> (<span class="built_in">this</span>.touchTimer) &#123;</span><br><span class="line">        <span class="built_in">clearTimeout</span>(<span class="built_in">this</span>.touchTimer)</span><br><span class="line">        <span class="built_in">this</span>.touchTimer = <span class="literal">undefined</span></span><br><span class="line">      &#125;</span><br><span class="line">    &#125;,</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="title">toClick</span>(<span class="params">e</span>)</span> &#123;</span><br><span class="line">      <span class="built_in">console</span>.log(<span class="string">&#x27;--click--&#x27;</span>, e)</span><br><span class="line">    &#125;,</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="title">slideStartHandler</span>(<span class="params">e</span>)</span> &#123;</span><br><span class="line">      <span class="built_in">console</span>.log(<span class="string">&#x27;--slideStartHandler--&#x27;</span>, e)</span><br><span class="line">      <span class="comment">// 定时300ms去模拟触发click事件</span></span><br><span class="line">      <span class="built_in">this</span>.cancelTouchTime()</span><br><span class="line">      <span class="built_in">this</span>.touchTimer = <span class="built_in">setTimeout</span>(<span class="function">() =&gt;</span> &#123;</span><br><span class="line">        <span class="comment">// this.toClick(e) // 当触发touchend时在执行函数</span></span><br><span class="line">      &#125;, <span class="number">300</span>)</span><br><span class="line">    &#125;,</span><br><span class="line">    </span><br><span class="line">    <span class="function"><span class="title">slideHandler</span>(<span class="params">e</span>)</span> &#123;</span><br><span class="line">      <span class="built_in">console</span>.log(<span class="string">&#x27;--slideHandler--&#x27;</span>, e)</span><br><span class="line">      <span class="comment">// 取消定时</span></span><br><span class="line">      <span class="built_in">this</span>.cancelTouchTime()</span><br><span class="line">    &#125;,</span><br><span class="line">    <span class="function"><span class="title">slideEndHandler</span>(<span class="params">e</span>)</span> &#123;</span><br><span class="line">      <span class="built_in">console</span>.log(<span class="string">&#x27;--slideEndHandler--&#x27;</span>, e)</span><br><span class="line">      <span class="comment">// 如果有定时触发click事件</span></span><br><span class="line">      <span class="comment">// console.log(this.touchTimer)</span></span><br><span class="line">      <span class="keyword">if</span> (<span class="built_in">this</span>.touchTimer) &#123;</span><br><span class="line">        <span class="built_in">this</span>.toClick(e)</span><br><span class="line">      &#125;</span><br><span class="line">      <span class="built_in">this</span>.cancelTouchTime()</span><br><span class="line">      <span class="comment">// console.log(this.touchTimer)</span></span><br><span class="line">    &#125;,</span><br><span class="line">&#125;</span><br></pre>
                  </td>
                </tr>
              </table>
            </figure>

            <blockquote>
              <p>缺点：当手指移动并且时间小于300ms也能触发<code>click</code>，当长按时间超过300ms时也不能阻止触发<code>click</code></p>
            </blockquote>
            <h1 id="方法二"><a href="#方法二" class="headerlink" title="方法二"></a>方法二</h1>
            <p>采用判断手指放下抬起的时间差、位置是否一致作为判断依据，时间大于300ms、位置不一致不触发<code>click</code>。</p>
            <p>大部分和方法一还是一致的，部分代码不一致</p>
            <figure class="highlight js">
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                    <pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br></pre>
                  </td>
                  <td class="code">
                    <pre><span class="line">&#123;</span><br><span class="line">    <span class="function"><span class="title">init</span>(<span class="params"></span>)</span> &#123;</span><br><span class="line">      <span class="comment">// 省略创建代码</span></span><br><span class="line">      <span class="comment">// 当手指触屏时触发</span></span><br><span class="line">      <span class="built_in">this</span>.slider.on(<span class="string">&#x27;slideStart&#x27;</span>, <span class="built_in">this</span>.slideStartHandler)</span><br><span class="line">      <span class="comment">// 当手指滑动时触发</span></span><br><span class="line">      <span class="built_in">this</span>.slider.on(<span class="string">&#x27;slide&#x27;</span>, <span class="built_in">this</span>.slideHandler)</span><br><span class="line">      <span class="comment">// 当手指离开时触发</span></span><br><span class="line">      <span class="built_in">this</span>.slider.on(<span class="string">&#x27;slideEnd&#x27;</span>, <span class="built_in">this</span>.slideEndHandler)</span><br><span class="line">    &#125;,</span><br><span class="line">    <span class="function"><span class="title">cancelTouchTime</span>(<span class="params"></span>)</span> &#123;</span><br><span class="line">      <span class="keyword">if</span> (<span class="built_in">this</span>.touchTime) &#123;</span><br><span class="line">        <span class="built_in">this</span>.touchTime = <span class="number">0</span></span><br><span class="line">      &#125;</span><br><span class="line">    &#125;,</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="title">toClick</span>(<span class="params">e</span>)</span> &#123;</span><br><span class="line">      <span class="built_in">console</span>.log(<span class="string">&#x27;--click--&#x27;</span>, e)</span><br><span class="line">    &#125;,</span><br><span class="line"></span><br><span class="line">    <span class="function"><span class="title">slideStartHandler</span>(<span class="params">e</span>)</span> &#123;</span><br><span class="line">      <span class="built_in">console</span>.log(<span class="string">&#x27;--slideStartHandler--&#x27;</span>, e)</span><br><span class="line">      <span class="built_in">this</span>.cancelTouchTime()</span><br><span class="line">      <span class="built_in">this</span>.touchTimer = <span class="built_in">Date</span>.now()</span><br><span class="line">      <span class="built_in">this</span>.touchStart = e.changedTouches[<span class="number">0</span>].clientY</span><br><span class="line">    &#125;,</span><br><span class="line">    </span><br><span class="line">    <span class="function"><span class="title">slideHandler</span>(<span class="params">e</span>)</span> &#123;</span><br><span class="line">      <span class="built_in">console</span>.log(<span class="string">&#x27;--slideHandler--&#x27;</span>, e)</span><br><span class="line">      <span class="comment">// 取消定时</span></span><br><span class="line">      <span class="built_in">this</span>.cancelTouchTime()</span><br><span class="line">    &#125;,</span><br><span class="line">    <span class="function"><span class="title">slideEndHandler</span>(<span class="params">e</span>)</span> &#123;</span><br><span class="line">      <span class="built_in">console</span>.log(<span class="string">&#x27;--slideEndHandler--&#x27;</span>, e)</span><br><span class="line"></span><br><span class="line">      <span class="keyword">const</span> touchEnd = e.changedTouches[<span class="number">0</span>].clientY</span><br><span class="line">      <span class="keyword">const</span> split = <span class="built_in">Date</span>.now() - <span class="built_in">this</span>.touchTimer</span><br><span class="line"></span><br><span class="line">      <span class="comment">// console.log(&#x27;----&#x27;, &#x27;split=&#x27;, split, &#x27;touchStart=&#x27;, this.touchStart, &#x27;touchEnd=&#x27;, touchEnd)</span></span><br><span class="line"></span><br><span class="line">      <span class="comment">// 时间小于300ms、并且没有移动去模拟触发click事件</span></span><br><span class="line">      <span class="keyword">if</span> (split &lt; <span class="number">300</span> &amp;&amp; touchEnd === <span class="built_in">this</span>.touchStart) &#123;</span><br><span class="line">        <span class="built_in">this</span>.toClick(e)</span><br><span class="line">      &#125;</span><br><span class="line">      <span class="built_in">this</span>.cancelTouchTime()</span><br><span class="line">    &#125;,</span><br><span class="line">&#125;</span><br></pre>
                  </td>
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